Colin Langan Expresses Doubt On Tesla's 2018 Production Guidance By: Benzinga via Benzinga May 09, 2016 at 14:36 PM EDT Colin Langan of UBS was a guest on Bloomberg TV to offer his take on Tesla Motors Inc (NASDAQ: TSLA)'s 2018 production guidance ... Read More >> Related Stocks: Tesla, Inc. UBS Group Ag ADR